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This paper presents the results in frequency tuning of a ferrite supported resonating CPW antenna based on CRLH (composite right/left-handed) transmission lines. The tuning is obtained by magnetically polarizing the ferrite substrate with a magnetic biasing field variable between 0 T and 0.26 T. Data obtained by simulation with a suitable microwave software indicate a frequency shift of 530 MHz at...
A new topology of balanced NL CRLH TL has been designed and then analysed, using hyperabrupt Schottky-varactor diodes as nonlinear element. The parallel resonators of the CRLH structures have been modelled by open-ended transmission lines, to overcome the biasing problems of the diodes. For a NL CRLH TL consisting of three identical cascaded cells, the numerical put into evidence the possibility the...
A CPW (coplanar waveguide) coupled-line directional coupler based on CRLH (composite right/left-handed) cascaded structures is designed, analyzed and then fabricated. The technological realization of the coupler involves one mask process on silicon substrate. The measured frequency bandwidth is from 10.5 GHz up to 13.5 GHz fitting well the simulation results.
This paper presents the results in modeling, technological realization and measurements of a CPW (CoPlanar Waveguide) microwave zeroth-order resonating antenna based on CRLH (composite right/left-handed) transmission lines. The CRLH consists of series connected CPW interdigital capacitors and parallel connected CPW transmission lines. The studied device was fabricated on silicon substrate for a subsequent...
This paper presents the results in modeling, technological realization and measurements of a zeroth- order resonating antenna based on CRLH (composite right/left-handed) transmission lines. The CRLH consists of series connected CPW interdigital capacitors and parallel connected CPW transmission lines. The studied devices were fabricated on silicon substrate for a subsequent integration in a more complex...
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